Value Collection 451116PR Hex Cap Screw 1/2-13 X 14 in Grade 8

Product Description

The VALUE COLLECTION 451116PR is a Grade 8 steel hex head cap screw with a 1/2-13 UNC thread and a 14-inch length under head. Grade 8 steel delivers high tensile strength suited for demanding structural and mechanical fastening applications. The partially threaded shank provides a smooth bearing surface for joint clamping, while the bright uncoated finish is appropriate for indoor or protected installations. Manufactured to ASME B18.2.1 dimensional standards, this fastener is a reliable choice for maintenance professionals, millwrights, pipefitters, and mechanical contractors who need a code-compliant, high-strength fastener in a long-length configuration.

This cap screw is used in heavy-duty bolted assemblies across industrial, commercial, and mechanical construction settings. Typical applications include equipment mounting, structural steel connections, machinery frames, and heavy bracket installations where Grade 8 rated fasteners are specified. The 1/2-13 UNC thread is a widely used coarse-thread size compatible with standard hex nuts, flat washers, and lock washers of the corresponding thread specification. The long 14-inch shank suits through-bolt applications in thick assemblies or stacked components.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Partially threaded shank provides a clean grip length for precise joint clamping
• 1/2-13 UNC coarse thread for broad compatibility with standard hardware
• ASME B18.2.1 compliant dimensional standard
• Bright uncoated finish — no additional coating to alter thread tolerances
• 7/16-inch hex key drive size for installation with standard wrench or socket tooling

Compatibility

Designed for use with standard 1/2-13 UNC hex nuts, flat washers, and threaded inserts in bolted assemblies requiring Grade 8 fasteners per ASME B18.2.1 specifications.

Installation Notes

Installation is performed with a standard 3/4-inch open-end, box-end, or socket wrench; the hex key size is 7/16 inch. Torque to the specification listed in the applicable engineering or equipment documentation for Grade 8 fasteners of this thread size. Inspect mating threads for damage or contamination before assembly. De-energize and lock out any equipment before replacing fasteners in live mechanical or electrical assemblies, following applicable OSHA lockout/tagout procedures.